A cryogenic fluid filling system based on a crane

Abstract

The invention discloses a low-temperature fluid filling system based on a crane, which relates to the technical field of low-temperature fluid filling. The system comprises a base, a rotating column, a main boom and an auxiliary boom. Filling devices are arranged on the main boom and the auxiliary boom. The filling devices comprise a filling pipeline and a low-temperature storage tank. The filling pipeline comprises a plurality of groups of fixed components arranged on the side wall surface of the auxiliary boom. Three conduits extending along the rotating column, the main boom and the auxiliary boom are arranged in the plurality of groups of fixed components, which are respectively a first conduit, a second conduit and a third conduit. A front filling gun is arranged at the direction where the first conduit extends toward the hook, and a rear filling gun is arranged at the direction where the second conduit extends toward the base, so that the output and input paths of the low-temperature fluid are distinguished, so that the output and input processes of the low-temperature fluid can be carried out simultaneously at the same time, thereby improving the filling speed of the low-temperature fluid.

Description

Technical Field

[0001] The present invention relates to the technical field of cryogenic fluid filling, and specifically provides a cryogenic fluid filling system based on a crane. Background Art

[0002] With the adjustment of the global energy structure and the wide application of clean energy, cryogenic fluids such as liquefied natural gas (LNG) and cryogenic ethylene play an increasingly important role in energy transportation and storage. However, traditional cryogenic fluid filling equipment has deficiencies in terms of functional diversity and operation flexibility. Especially during shipborne filling, it is difficult to simultaneously meet the requirements of lifting heavy objects and precise filling. Therefore, based on the patent content with the application number 201320518516.6, the present invention aims to provide a cryogenic fluid filling system based on a crane to solve the deficiencies in the prior art and improve filling efficiency and safety. Summary of the Invention

[0003] The purpose of the present invention is to provide a cryogenic fluid filling system based on a crane to solve the problems raised in the above background art.

[0004] To solve the above technical problems, the present invention provides the following technical solution: A cryogenic fluid filling system based on a crane, including a base, a rotating column, a main boom, and a sub-boom. The base is fixed to the ground, the rotating column is installed on the base through a slewing bearing, the main boom is hinged above the rotating column and connected to the rotating column through a horizontally arranged hinge shaft. Filling devices are provided on the main boom and the sub-boom. The filling device includes a filling pipeline and a cryogenic storage tank. The filling pipeline includes several groups of fixing components arranged on the side wall surface of the sub-boom. Three conduits extending along the rotating column, the main boom, and the sub-boom are arranged in each of the several groups of fixing components, namely a first conduit, a second conduit, and a third conduit. A front filling gun is arranged at the position where the first conduit extends towards the hook, and a rear filling gun is arranged at the position where the second conduit extends towards the base.

[0005] According to the above technical solution, the front filling gun includes a first gun barrel installed at the front end of the first conduit through a bearing. A telescopic pipeline structure is arranged inside the first gun barrel. The telescopic pipeline structure is divided into two telescopic parts. The first telescopic part includes a track arranged on the inner side wall of the first gun barrel, and a second gun barrel is slidably connected to the track. The top pipeline of the second gun barrel is hermetically connected to the first telescopic pipeline structure. The second telescopic part includes a second telescopic pipeline structure hermetically arranged at the end of the second gun barrel, and a first cryogenic liquid pump is arranged inside the second gun barrel.

[0006] According to the above technical solution, the rear filling gun includes a transfer bin fixedly installed on the side wall of the base, and a pressure relief port is arranged at the top of the transfer bin.

[0007] According to the above technical solution, three groups of medium conveying components are arranged on the side wall of the transfer warehouse. Each group of medium conveying components includes an extension pipe, and the top of the extension pipe is detachably connected to a nozzle pipe through a pipeline.

[0008] According to the above technical solution, a second cryogenic liquid pump is arranged at the connection area between the second conduit and the transfer warehouse, and a third cryogenic liquid pump is arranged at the rear end of the third conduit.

[0009] According to the above technical solution, the fixing component further includes a centralized warehouse fixedly installed on the side wall of the auxiliary boom. A reinforcing block is fixedly installed on the side wall of the centralized warehouse, a housing is fixedly installed on the side wall of the reinforcing block, a support rod is fixedly installed on the side wall of the reinforcing block, a limiting sleeve is fixedly installed at the end of the support rod, and the first conduit, the second conduit, and the third conduit are installed in the limiting sleeve.

[0010] According to the above technical solution, three fourth conduits are arranged extending from the side of the centralized warehouse. The three fourth conduits correspond to the first conduit, the second conduit, and the third conduit one by one. The fourth conduits extend through the reinforcing block and the limiting sleeve and enter the first conduit, the second conduit, and the third conduit, and first micro valves are arranged on the fourth conduits in the first conduit, the second conduit, and the third conduit.

[0011] According to the above technical solution, electric control valves are arranged on the first conduit, the second conduit, and the third conduit on both sides of the fixing component.

[0012] According to the above technical solution, a fifth conduit is arranged at the bottom of the centralized warehouse. A second micro valve is arranged at the connection between the fifth conduit and the centralized warehouse. The fifth conduit is connected to the cryogenic storage tank through a pipeline. A sixth conduit is also arranged through a pipeline at the bottom of the centralized warehouse. A third micro valve is arranged at the connection between the sixth conduit and the centralized warehouse. The sixth conduit extends into the cryogenic storage tank, and is connected to a fourth cryogenic liquid pump inside the cryogenic storage tank.

[0013] According to the above technical solution, a temperature detection sensor and a cooling structure are arranged inside the cryogenic storage tank. The temperature detection sensors are arranged on the inner wall of the cryogenic storage tank from top to bottom in sequence. The cryogenic storage tanks are arranged under the auxiliary boom from left to right in sequence, and each cryogenic storage tank corresponds to a fixing component.

[0014] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: In the present invention, by arranging the first conduit and the second conduit, the output and input paths of the cryogenic fluid are separated, so that the output and input processes of the cryogenic fluid can be carried out simultaneously at the same time, and the filling speed of the cryogenic fluid is increased. Description of the Drawings

[0015] The drawings are used to provide further understanding of the present invention, and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention, and do not constitute a limitation to the present invention. In the drawings:

[0016] Figure 1 is the overall front three-dimensional structure schematic diagram of the present invention;

[0017] Figure 2 is the structure schematic diagram of the fixing component of the present invention;

[0018] Figure 3 is the structure schematic diagram of the cryogenic storage tank of the present invention;

[0019] Figure 4 is the schematic diagram of the electric control valve and the fixing component of the present invention;

[0020] Figure 5 is the structure schematic diagram of the pre-positioned filling gun of the present invention;

[0021] Figure 6 is the schematic diagram of the second cryogenic liquid pump and the third cryogenic liquid pump of the present invention;

[0022] Figure 7 is the Figure 1 amplified structure schematic diagram of area A in the present invention;

[0023] In the figure: 1, base; 2, rotating column; 3, main lifting arm; 4, auxiliary lifting arm; 5, filling device; 6, cryogenic storage tank; 7, sixth conduit; 8, filling pipeline; 9, third micro-valve; 10, fixing component; 11, first conduit; 12, second conduit; 13, third conduit; 14, pre-positioned filling gun; 15, post-positioned filling gun; 16, first gun barrel; 17, track; 18, second gun barrel; 19, first telescopic pipeline structure; 20, second telescopic pipeline structure; 21, first cryogenic liquid pump; 22, transfer bin; 23, medium conveying component; 24, extension pipe; 25, nozzle pipe; 26, second cryogenic liquid pump; 27, third cryogenic liquid pump; 28, pressure relief port; 29, centralized bin; 30, reinforcement block; 31, housing; 32, support rod; 33, limit sleeve; 34, fourth conduit; 35, first micro-valve; 36, electric control valve; 37, fifth conduit; 38, second micro-valve; 39, temperature detection sensor; 40, cooling structure; 41, fourth cryogenic liquid pump. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figure 1-7, the present invention provides a technical solution: a cryogenic fluid filling system based on a crane. In this embodiment, the hose crane is an existing device and will not be elaborated in detail here. Integrating the lifting function of the crane with the cryogenic fluid filling function improves the utilization rate of the equipment and the convenience of operation;

[0026] The hose crane includes a base 1 and a rotating column 2. The base 1 is fixed to the ground, and the rotating column 2 is installed on the base 1 through a slewing bearing, enabling 360-degree rotation in the horizontal direction to meet the filling requirements in different directions;

[0027] The hose crane further includes a main boom 3 and a sub-boom 4. The main boom 3 is hinged above the rotating column 2 and connected to the rotating column 2 through a horizontally arranged hinge shaft to achieve the up-and-down lifting function. The sub-boom 4 is hinged at the front end of the main boom 3 to further enhance the flexibility and stability of lifting. A hydraulic winch is provided at the front end of the sub-boom 4, which is connected to a hook through a sling and a fixed pulley to achieve the lifting and suspension of heavy objects. Through the coordinated action of the rotating column 2 and the main and sub-boom, the flexible operation of the filling equipment in space is realized to meet the requirements of different filling positions;

[0028] The hose crane also includes a filling device 5 for cryogenic fluids. The filling device 5 includes a cryogenic storage tank 6, a cryogenic liquid pump, a filling pipeline 8, and a control system. The cryogenic storage tank 6 is used to store the cryogenic fluid to be filled. After the cryogenic storage tank 6 detects the cryogenic fluid to be filled, the filling process continues. The cryogenic liquid pump transports the cryogenic fluid to the filling gun through the filling pipeline 8, and the control system is responsible for monitoring and adjusting various parameters during the filling process to ensure the accuracy and safety of filling.

[0029] The hose crane also includes a pipeline steering mechanism. The pipeline steering mechanism is a structure of existing technology and is used to realize the flexible operation of the filling equipment in a complex space, including horizontal and vertical rotary joints and elbow assemblies. This mechanism can rotate and bend the filling pipeline 8 in the horizontal and vertical directions to meet the requirements of different filling positions.

[0030] The hose crane also includes a safety system. To ensure safety during the filling process, the system is equipped with safety devices such as emergency breakaway valves, safety valves, and rupture discs. The emergency breakaway valve can achieve the rapid separation of the hose from the tank ship in special cases to prevent the expansion of accidents. The safety devices such as emergency breakaway valves, safety valves, and rupture discs are all structures of existing technology and will not be elaborated here.

[0031] When in use, first dock the ship to be refueled at the designated position, and aim the filling gun at the filling port by adjusting the rotating column 2, the main boom 3, and the auxiliary boom 4. Then, start the cryogenic liquid pump, and transport the cryogenic fluid to the filling gun through the filling pipeline 8 to start the filling operation. During the filling process, the control system monitors parameters such as fluid pressure, flow and temperature in real time to ensure the accuracy and safety of the filling. After the filling is completed, the cryogenic liquid pump is turned off by the control system, and the filling gun is retracted to a safe position.

[0032] The filling pipeline 8 includes a plurality of fixed components 10 arranged on the side wall of the auxiliary boom 4. Three conduits extending along the rotating column 2, the main boom 3 and the auxiliary boom 4 are arranged in the fixed component 10, which are the first conduit 11, the second conduit 12 and the third conduit 13. The front ends of the first conduit 11, the second conduit 12 and the third conduit 13 are all bent toward the ground, which is convenient for extracting and transporting the cryogenic fluid in the cabin. At the same time, the vertical downward structure is convenient for automatic discharge of the cryogenic fluid to avoid accumulation of the cryogenic fluid in the first conduit 11, the second conduit 12 and the third conduit 13. A front filling gun 14 is arranged at the direction where the first conduit 11 extends toward the hook, and a rear filling gun 15 is arranged at the direction where the second conduit 12 extends toward the base 1;

[0033] The front filling gun 14 includes a first barrel 16 with a bearing installed at the front end of the first guide tube 11, a retractable pipeline structure is arranged in the first barrel 16, and the retractable pipeline structure is divided into two retractable parts. The first retractable part includes a track 17 arranged on the inner wall of the first barrel 16, and the second barrel 18 is slidably connected to the track 17. The top pipeline of the second barrel 18 is sealed and connected to the first retractable pipeline structure 19. The second barrel 18 is sealed and connected to the first guide tube 11 through the first retractable pipeline structure 19. The second retractable part includes a second retractable pipeline structure 20 with a pipeline seal arranged at the end of the second barrel 18. A first cryogenic liquid pump 21 is arranged inside the second barrel 18. The start and stop of the first cryogenic liquid pump 21 are regulated by the control system. The second telescopic pipe structure 20 is placed into the cryogenic fluid storage structure in the cabin. At this time, the height of the second barrel 18 can be controlled by the control system according to the position of the cabin, so that the connection between the second barrel 18 and the second telescopic pipe structure 20 is in a non-bent state as much as possible, in order to avoid the cryogenic fluid from impacting the connection between the second barrel 18 and the second telescopic pipe structure 20 and prolonging the service life of the second telescopic pipe structure 20. The cryogenic fluid in the cabin is pumped into the second telescopic pipe structure 20 by the first cryogenic liquid pump 21, enters the second barrel 18 through the second telescopic pipe structure 20, and then enters the first conduit 11 through the first telescopic pipe structure 19, completing the first step of filling the cryogenic fluid and pumping the cryogenic fluid out of the cabin;

[0034] The post-positioned filling gun 15 includes a transfer bin 22 fixedly installed on the side wall of the base 1. The first conduit 11, the second conduit 12, and the third conduit 13 all extend into the transfer bin 22. A pressure relief port 28 is provided at the top of the transfer bin 22. The function of the pressure relief port 28 is to discharge the gas in the transfer bin 22 when the medium enters the transfer bin 22, maintaining a relatively sealed environment inside the transfer bin 22. A second cryogenic liquid pump 26 is provided at the connection area between the second conduit 12 and the transfer bin 22. The start and stop of the second cryogenic liquid pump 26 are both regulated by the control system. The cryogenic fluid medium in the transfer bin 22 is transported into the second conduit 12 through the second cryogenic liquid pump 26, and then transported into the cabin through the second conduit 12. Three groups of medium delivery assemblies 23 are provided on the side wall of the transfer bin 22. Each group of medium delivery assemblies 23 includes an extension pipe 24, and the top of the extension pipe 24 is detachably connected to a nozzle pipe 25. Nozzle pipes 25 of different specifications are selected according to the specifications of the cryogenic fluid transfer vehicle, and the matching nozzle pipe 25 can be installed. Compared with the previous process of replacing the entire filling pipeline 8, the advantage is high efficiency and fast filling speed;

[0035] The first conduit 11 and the second conduit 12 are provided to separate the output and input paths of the cryogenic fluid, enabling the simultaneous output and input processes of the cryogenic fluid at the same time, and improving the filling speed of the cryogenic fluid;

[0036] Among the three groups of medium delivery assemblies 23, one group of medium delivery assemblies 23 is used to extract the cryogenic fluid from the cryogenic fluid transfer vehicle, one group of medium delivery assemblies 23 is used to transport the cryogenic fluid into the cryogenic fluid transfer vehicle, and the last group of medium delivery assemblies 23 is connected to an external cleaning tank. The cleaning liquid medium filled in the cleaning tank is transported into the transfer bin 22 through a pump provided in the cleaning tank. When it is necessary to transport the cryogenic fluid in the cryogenic fluid transfer vehicle into the cabin, it is necessary to manually connect the pipeline on the cryogenic fluid transfer vehicle to the nozzle pipe 25, so that the cryogenic fluid on the cryogenic fluid transfer vehicle is transported into the transfer bin 22 until the transfer bin 22 is filled. After the transfer bin 22 is full, the control system drives the post-positioned filling gun 15 to operate, and transports the cryogenic fluid in the transfer bin 22 into the cabin. The control system sets the transport volume of the cryogenic fluid from the cryogenic fluid transfer vehicle to the transfer bin 22 as P1, and sets the transport volume of the cryogenic fluid in the transfer bin 22 to the cabin as P2. During the process of transporting the cryogenic fluid from the cryogenic fluid transfer vehicle to the cabin, the control system needs to maintain P1 = P2, so that the transfer bin 22 always remains full, so that no gas flows along with the cryogenic fluid during the transportation of the cryogenic fluid to the cabin. If there is a situation where a large amount of gas is mixed with the cryogenic fluid, it will cause the air pressure in the cryogenic fluid storage structure in the cabin to be disordered. A supporting cryogenic fluid transportation structure is provided on the cryogenic fluid transfer vehicle;

[0037] When it is necessary to transport the cryogenic fluid in the cabin to the cryogenic fluid transfer vehicle, the pipeline on the cryogenic fluid transfer vehicle is also manually connected to the nozzle pipe 25. In this process, the cryogenic fluid in the transfer bin 22 is still filled up first, and then the cryogenic fluid in the transfer bin 22 is transported to the cryogenic fluid transfer vehicle. The purpose is also to avoid the gas mixing with the cryogenic fluid flowing, and to ensure the safety of the cryogenic fluid transfer vehicle during driving;

[0038] A third cryogenic liquid pump 27 is arranged at the rear end of the third conduit 13. The start and stop of the third cryogenic liquid pump 27 are both controlled by the control system. The clean liquid medium in the transfer bin 22 is transported into the third conduit 13 through the third cryogenic liquid pump 27, and then enters the cabin through the third conduit 13 to clean the cabin, so that there is no interval between the filling process of the cryogenic fluid and the cleaning process of the cabin, and the filling progress of the cryogenic fluid is accelerated;

[0039] The fixing assembly 10 further includes a centralized bin 29 fixedly installed on the side wall of the auxiliary boom 4. A reinforcing block 30 is fixedly installed on the side wall of the centralized bin 29. A housing 31 is fixedly installed on the side wall of the reinforcing block 30. The function of the housing 31 is to protect the first conduit 11, the second conduit 12, and the third conduit 13. A support rod 32 is fixedly installed on the side wall of the reinforcing block 30. A limit sleeve 33 is fixedly installed at the end of the support rod 32. The first conduit 11, the second conduit 12, and the third conduit 13 are installed in the limit sleeve 33. Three fourth conduits 34 extend from the side of the centralized bin 29. The three fourth conduits 34 correspond to the first conduit 11, the second conduit 12, and the third conduit 13 one by one. The fourth conduits 34 extend through the reinforcing block 30 and the limit sleeve 33 and enter the first conduit 11, the second conduit 12, and the third conduit 13. And a first micro-valve 35 is provided on the fourth conduits 34 in the first conduit 11, the second conduit 12, and the third conduit 13. Electric control valves 36 are provided on the first conduit 11, the second conduit 12, and the third conduit 13 on both sides of the fixing assembly 10. A fifth conduit 37 is provided at the bottom of the centralized bin 29. A second micro-valve 38 is provided at the connection between the fifth conduit 37 and the centralized bin 29. The fifth conduit 37 is connected to the cryogenic storage tank 6 by a pipeline. A temperature detection sensor 39 and a cooling structure 40 are provided in the cryogenic storage tank 6. The temperature detection sensor 39 is arranged on the inner wall of the cryogenic storage tank 6 from top to bottom in sequence. The cryogenic storage tanks 6 are arranged under the auxiliary boom 4 from left to right in sequence. Each cryogenic storage tank 6 corresponds to a fixing assembly 10. The cooling structure 40 reduces the temperature of the cryogenic fluid in the cryogenic storage tank 6. A sixth conduit 7 is also provided at the bottom of the centralized bin 29 by a pipeline. A third micro-valve 9 is provided at the connection between the sixth conduit 7 and the centralized bin 29. The start and stop of the first micro-valve 35, the second micro-valve 38, and the third micro-valve 9 are all controlled by the control system. The sixth conduit 7 extends into the interior of the cryogenic storage tank 6 and is connected to a fourth cryogenic liquid pump 41 in the cryogenic storage tank 6. The start and stop of the fourth cryogenic liquid pump 41 are all controlled by the control system. Before the transportation process of the cryogenic fluid, it is necessary to detect the cryogenic fluid. The detection process is as follows: If the cryogenic fluid is transported from the cryogenic fluid transfer vehicle to the cabin, the control system opens the first electric control valve 36 through which the cryogenic fluid flows. At this time, the first second micro-valve 38, the first micro-valve 35 matching the cryogenic fluid, and the second micro-valve 38 are all opened, so that the cryogenic fluid flows into the centralized bin 29 through the fourth conduit 34, then flows into the fifth conduit 37 through the centralized bin 29, and finally enters the cryogenic storage tank 6 through the fifth conduit 37. The temperature detection sensor 39 in the cryogenic storage tank 6 detects the temperature of the flowing cryogenic fluid to obtain a temperature value K1. A rated cryogenic fluid temperature value K2 is set in the control system. Then, after obtaining K1, the control system compares K1 with K2;

[0040] If K1 is higher than K2, the control system activates the cooling structure 40 to cool down the cryogenic fluid, and records the time L when the temperature drops to the value of K2. L is divided into two levels, L1 - L2. L1 represents the shortest time for the cryogenic fluid in the cryogenic storage tank 6 to drop from the temperature value of K1 to the temperature value of K2, and L2 represents the longest time for the cryogenic fluid in the cryogenic storage tank 6 to drop from the temperature value of K1 to the temperature value of K2;

[0041] If L is at the L1 level, it means the temperature of the cryogenic fluid is slightly higher. After being cooled down by the cooling structure 40 in the first cryogenic storage tank 6 along the flow path of the cryogenic fluid, the cooled cryogenic fluid is returned to the centralized bin 29 through the fourth cryogenic liquid pump 41, and then transported to the second conduit 12 through the fourth conduit 34. At this time, all the electronically controlled valves 36 on the second conduit 12 are fully opened to allow the cryogenic fluid to flow into the cabin. This process requires filling the first cryogenic storage tank 6 with cryogenic fluid first. After the first cryogenic storage tank 6 is filled, stop transporting the cryogenic fluid continuously. After all the cryogenic fluid in the first cryogenic storage tank 6 is transported into the cabin, repeat the above process until the transportation of the cryogenic fluid ends. This method of filling the cryogenic fluid is suitable for transporting a small amount of cryogenic fluid, and its advantage is low - energy - consumption transportation of cryogenic fluid with a slightly higher temperature;

[0042] If L is at the L2 level, it means the temperature of the cryogenic fluid is relatively high. After being cooled down by the cooling structure 40 in the first cryogenic storage tank 6 along the flow path of the cryogenic fluid, the cooled cryogenic fluid is returned to the centralized bin 29 through the fourth cryogenic liquid pump 41, and then transported to the second conduit 12 through the fourth conduit 34. At this time, open the electronically controlled valve 36 on the liquid inlet side of the second cryogenic storage tank 6 through which the cryogenic fluid passes, and repeat the above process until the last cryogenic storage tank 6 starts to operate to complete the transportation of the cryogenic fluid. This method of filling the cryogenic fluid is suitable for transporting a large amount of cryogenic fluid, and its advantage is that by aggregating the cooling of multiple cryogenic storage tanks 6, the pause time for filling the cryogenic fluid is reduced;

[0043] The above - mentioned usage method for cryogenic fluid with a relatively high temperature is also applicable;

[0044] The above - mentioned cryogenic fluid with a relatively high temperature can maintain its liquid state;

[0045] If K1 is not higher than K2, the control system first transports the cryogenic fluid in the cryogenic storage tank 6 to the cabin, and at the same time, there is no need to detect the subsequent cryogenic fluid, and it is directly transported to the cabin;

[0046] If transporting the cryogenic fluid from the cabin to the cryogenic fluid transfer vehicle, the above - mentioned detection process is also repeated;

[0047] After the cryogenic fluid filling is completed, the control system drives the third cryogenic liquid pump 27 to operate, and conveys the clean liquid medium in the transfer bin 22 to the third conduit 13. At this time, the first micro-valve 35 is opened, so that the clean liquid medium in the third conduit 13 is conveyed to the first conduit 11 and the second conduit 12 through the centralized bin 29, and then the first conduit 11 and the second conduit 12 are cleaned. The cabin can also be cleaned through the first conduit 11 and the second conduit 12 without being disassembled for cleaning.

[0048] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0049] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A crane-based cryogenic fluid filling system, comprising a base (1), a rotating column (2), a main boom (3) and a secondary boom (4), wherein the base (1) is fixed to the ground, the rotating column (2) is mounted on the base (1) via a slewing bearing, the main boom (3) is hinged above the rotating column (2) and connected to the rotating column (2) via a horizontally arranged hinge shaft, and is characterized in that: A filling device (5) is provided on the main boom (3) and the auxiliary boom (4), the filling device (5) comprising a filling pipeline (8) and a low-temperature storage tank (6), the filling pipeline (8) comprising a plurality of groups of fixing components (10) arranged on the side wall surface of the auxiliary boom (4), three conduits extending along the rotating column (2), the main boom (3) and the auxiliary boom (4) are arranged in the plurality of groups of fixing components (10), namely a first conduit (11), a second conduit (12) and a third conduit (13), a front filling gun (14) is arranged at the direction where the first conduit (11) extends towards the hook, and a rear filling gun (15) is arranged at the direction where the second conduit (12) extends towards the base (1); The post-filling gun (15) comprises a transfer bin (22) fixedly mounted on a side wall of the base (1); The fixing assembly (10) further comprises a centralizing bin (29) fixedly mounted on a side wall of the auxiliary boom (4); Three fourth conduits (34) are extended from the side of the centralizing bin (29), and the three fourth conduits (34) correspond to the first conduit (11), the second conduit (12), and the third conduit (13) respectively; A fifth conduit (37) is arranged at the bottom of the centralized warehouse (29), a second micro valve (38) is arranged at the connection between the fifth conduit (37) and the centralized warehouse (29), the fifth conduit (37) and the low-temperature storage tank (6) are connected via a pipeline, a sixth conduit (7) is also arranged at the bottom of the centralized warehouse (29), a third micro valve (9) is arranged at the connection between the sixth conduit (7) and the centralized warehouse (29), the sixth conduit (7) extends into the interior of the low-temperature storage tank (6), and is connected to a fourth low-temperature liquid pump (41) in the low-temperature storage tank (6); A temperature detection sensor (39) and a cooling structure (40) are arranged in the low-temperature storage tank (6).

2. A crane-based cryogenic fluid filling system according to claim 1, characterized in that: The front filling gun (14) includes a first barrel (16) with a bearing installed at the front end of the first guide tube (11), a retractable pipe structure is arranged inside the first barrel (16), and the retractable pipe structure is divided into two retractable parts. The first retractable part includes a track (17) arranged on the inner wall of the first barrel (16), and the track (17) is slidably connected to the second barrel (18), the top pipe of the second barrel (18) is sealed and connected to the first retractable pipe structure (19), and the second retractable part includes a second retractable pipe structure (20) with a pipe seal arranged at the end of the second barrel (18), and a first cryogenic liquid pump (21) is arranged inside the second barrel (18).

3. A crane-based cryogenic fluid filling system according to claim 2, characterized in that: A pressure relief port (28) is provided on the top of the transfer bin (22).

4. A crane-based cryogenic fluid filling system according to claim 3, characterized in that: Three groups of medium conveying components (23) are arranged on the side wall of the transfer bin (22), and each group of the medium conveying components (23) comprises an extension tube (24), and the top of the extension tube (24) is detachably connected to the nozzle tube (25).

5. A crane-based cryogenic fluid filling system according to claim 4, characterized in that: A second cryogenic liquid pump (26) is provided at the connection area between the second conduit (12) and the transfer chamber (22), and a third cryogenic liquid pump (27) is provided at the rear end of the third conduit (13).

6. A crane-based cryogenic fluid filling system according to claim 5, characterized in that: A reinforcing block (30) is fixedly mounted on the side wall of the centralized bin (29), a shell (31) is fixedly mounted on the side wall of the reinforcing block (30), a supporting rod (32) is fixedly mounted on the side wall of the reinforcing block (30), a limiting sleeve (33) is fixedly mounted on the end of the supporting rod (32), and the first conduit (11), the second conduit (12) and the third conduit (13) are mounted in the limiting sleeve (33).

7. A crane-based cryogenic fluid filling system according to claim 6, characterized in that: The fourth conduit (34) extends through the reinforcing block (30) and the limiting sleeve (33) and enters the first conduit (11), the second conduit (12) and the third conduit (13), and a first micro valve (35) is provided on the fourth conduit (34) in the first conduit (11), the second conduit (12) and the third conduit (13).

8. A crane-based cryogenic fluid filling system according to claim 7, characterized in that: The first conduit (11), the second conduit (12) and the third conduit (13) on both sides of the fixing assembly (10) are all provided with electric control valves (36).

9. A crane-based cryogenic fluid filling system according to claim 8, characterized in that: The temperature detection sensors (39) are arranged on the inner wall of the low-temperature storage tank (6) in sequence from top to bottom, and the low-temperature storage tanks (6) are arranged below the auxiliary boom (4) in sequence from left to right, and each low-temperature storage tank (6) corresponds to one of the fixing components (10).

Images